The Shaft,shouldered, cataloged under National Stock Number 3040-01-303-6409, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Lockheed Martin Corporation. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-303-6409 |
| Primary Part Number | 13082809-1 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Lockheed Martin Corporation |
| Status | ACTIVE |
| Step Quantity | 3 |
| First End Diameter | 0.2497 INCHES NOMINAL IN |
| Second End Diameter | 0.2497 INCHES NOMINAL IN |
| Largest Step Diameter | 0.2497 INCHES NOMINAL IN |
| First End Style | PLAIN |
| Second End Groove Diameter | 0.2100 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Groove Width | 0.0290 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 0.1200 INCHES NOMINAL IN |
| Second End Style | CIRCULAR GROOVED |
| Material | STEEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 13082809-1 PRIMARY | Lockheed Martin Corporation (USA) |
| Reference | Meaning |
|---|---|
| 13082809 | D/9 Drawing number reference only Program Manager Advanced Attack Helicopter Barcom Amcpm-Aah |
NSN 3040-01-303-6409 is a Shaft,shouldered, manufactured by Lockheed Martin Corporation, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-303-6409 has 1 manufacturer part number on file: 13082809-1 (Lockheed Martin Corporation).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-304-6165. Verify interchangeability with system specifications before substitution.
Key specifications for 13082809-1: Step Quantity: 3; First End Diameter: 0.2497 INCHES NOMINAL IN; Second End Diameter: 0.2497 INCHES NOMINAL IN; Largest Step Diameter: 0.2497 INCHES NOMINAL IN. 11 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 3040-01-303-6409 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.